 | SPENNARMERING AS | 950174617 | STJØRDAL |
| SPENNCON AS | 844558082 | RINGERIKE |
| SPENNTEKNIKK CONSTRUCTION AS | 897800292 | KONGSVINGER |
| SPERA AS | 817125522 | VERDAL |
| SPIGSETH K LANDBRUKSSERVICE | 970367578 | NES |
| SPIKERN BYGG AS | 985601127 | OSLO |
| SPINN ARKITEKTER AS | 998341914 | OSLO |
| SPIR ARKITEKTER AS | 920420877 | TØNSBERG |
| SPLITKON AS | 995806797 | MODUM |
| SPO BYGG OLSEN | 915358543 | ARENDAL |
| SPOR ARKITEKTER AS | 976588614 | OSLO |
| SPORSTØL ARKITEKTER AS | 961181488 | ULSTEIN |
| SPORT OG GRØNTANLEGG AS | 984324707 | VESTBY |
| SPRENGESERVICE AS | 997963644 | SKIPTVET |
| SPRENGNINGSTEKNIKK AS | 938430772 | BERGEN |
| SPRINKLER KONGEN AS | 928103412 | ØVRE EIKER |
| SPRINKLERKONTROLL AS | 993055522 | INDRE FOSEN |
| SPRINKLER MIDT-NORGE AS | 996452786 | TRONDHEIM |
| SPRINKLERPARTNER AS | 991663150 | VESTNES |
| Sprinkler Prosjekt A/S | 945694246 | OSLO |
| SPRINKLERTEKNIKK AS | 825798382 | OSLO |
| SPRINKTEC AS | 926104837 | TIME |
| SP SPRINKLER AS | 986284338 | ULLENSAKER |
| SPYDEBERG UTEMILJØ AS | 995233045 | INDRE ØSTFOLD |
| SRA/ AS | 931119516 | OSLO |
| SR BYGG AS | 997411064 | KRISTIANSAND |
| SR BYGG OG ANLEGG AS | 916299257 | RÅDE |
| SR-ENTREPRENØR AS | 919525894 | KLEPP |
| SR-MESTERBYGG AS | 920676111 | FREDRIKSTAD |
| S-RØR AS | 913013859 | VERDAL |
| SR TOBIASSEN AS | 918533818 | LILLESAND |
| SSP SIKKERHET AS | 994018299 | OSLO |
| STAALE LIE AS | 994985396 | SANDNES |
| STABIL AS | 915868533 | TØNSBERG |
| STAD KYSTBYGG AS | 917022429 | STAD |
| STADT MASKIN AS | 921016204 | STAD |
| STAD VVS AS | 995607441 | STAD |
| STÆRK & CO AS | 921026455 | ARENDAL |
| STAFR CONSULTING AS | 826942002 | STAVANGER |
| STAFSETH MASKIN AS | 978689477 | ÅLESUND |
| STAKE & GRAVE SERVICE AS | 936775454 | OSLO |
| STAKKELAND AS | 989994506 | KVINESDAL |
| STÅLBETONG KONSTRUKSJON AS | 924576324 | ULLENSAKER |
| STÅLBYGG AS | 913129059 | FREDRIKSTAD |
| STÅL-CONSULT AS | 943706395 | KRISTIANSAND |
| STÅLE HANSEN GRAVESERVICE AS | 931673149 | DRAMMEN |
| STÅLE KIRKAUNE AS | 913850009 | ORKLAND |
| STÅLE STRØMSVOLD | 987216018 | STAVANGER |
| STÅLKONSTRUKSJON AS | 891156812 | NITTEDAL |
| STÅL OG GLASS AS | 924847433 | OSLO |